CN204768210U - Modular desulfurization dust removal integrated device - Google Patents

Abstract

Modular desulfurization dust removal integrated device relates to flue gas desulfurization dust collecting equipment technical field, especially belongs to a modular desulfurization dust removal integrated device. Including tower body (18), tower body (18) upper portion is equipped with exhanst gas outlet (1), and tower body (18) lower part is equipped with flue gas entry (14), and what link to each other with flue gas entry (14) be circular equal air chamber (13), and circular equal air chamber (13) upper portion is the flue, is equipped with in proper order in the flue that SO2 absorbs reactions take place room (9), PM2.5 adsorbs reunite emergence room (7), steam -water separation room (4). The utility model discloses all do not have water pump, pipeline, equipment in cyclic process and corrode and blocking phenomenon, have the equipment of being convenient for operation and the simply easy operation of maintenance, equipment, desulfurization positive effect with low costs.

Description

Modular desulphurization and dust removal integrated device

Technical field

The utility model relates to flue gas desulfurization and dedusting equipment technical field, particularly belongs to a kind of modular desulphurization and dust removal integrated device.

Background technology

Containing a large amount of organic and inorganic sulfurs in the fuel such as coal, oil, natural gas, SO in air ₂discharge mainly from the burning of fuel, fuel discharges containing SO in burning ₂also can discharge a large amount of flue dust while flue gas, be cause air pollution, the main cause that haze is increasingly severe.Thus in fume emission process, control the SO discharged ₂content and flue dust are problems anxious to be resolved.Flue gas desulfurization technique mainly utilizes the SO in absorbent or adsorbent removal flue gas ₂, and make it be converted into stable sulfide or sulphur.Dedusting adopts bag-type dust to be also difficult to control the discharge of molecule PM2.5.In recent decades, the application development of external desulfurizing industrial fume dust arrester is very fast, and China has also carried out the research of flue gas desulfurization and dedusting technology closely during the last ten years.Wherein the desulfurization of lime stone one gypsum wet be at present in the world technology the most ripe, apply maximum sulfur removal technologies, this desulfurizer is using lime stone slurry as absorbent, in absorption tower, spray washing is carried out to flue gas by lime stone slurry, react, to remove the SO in flue gas ₂the calcium sulfite that reaction produces generates the calcium sulfate (gypsum) containing two crystallizations water by forced oxidation, flue gas after desulfurization removes room from PM2.5 and makes tiny cluster of grains be polymerized to large particle by spray foam agglomerator to be separated when carbonated drink is separated, and flue gas is finally discharged from chimney.But the most serious problems that lime-gypsum method desulfurization exists are exactly fouling in tower, Ca (OH) ₂emulsion in the duct high concentration is run, easy blocking pipe and shower nozzle, and temperature controls more easily not cause fouling in tower at that time, very big to Influence of production.Current scale removal uses various scale remover to carry out the mode of scale removal usually, and descale effect is poor and cost is high.And using the spray mode of lime-gypsum wet desulfurization, the solubility of Ca (OH) 2 only has 0.18%, and desulfuration efficiency is low.

Summary of the invention

The purpose of this utility model will provide a kind of modular desulphurization and dust removal integrated device exactly, while scale problems in solution lime-gypsum method desulfurizing tower, reaches operating cost low, the object that desulfuration efficiency is high.

Modular desulphurization and dust removal integrated device of the present utility model, has tower body, and tower body top is provided with exhanst gas outlet, tower body bottom is provided with smoke inlet, it is characterized in that, what be connected with smoke inlet is circular all air chambers, the top of circular all air chambers is flue, is laid with SO in flue with this ₂absorption reaction generation chamber, PM2.5 adsorb reunion generation chamber, steam-water separation chamber, described SO ₂absorption reaction generation chamber bottom is provided with rotational flow generator, SO ₂absorption reaction generation chamber bottom is provided with the air-quantity adjusting valve regulating rotational flow generator air quantity; Air-quantity adjusting valve bottom is provided with SO ₂absorption reaction generation chamber visor; SO ₂the top of absorption reaction generation chamber is provided with PM2.5 and adsorbs reunion generation chamber, and what adsorb that reunion generation chamber is closely connected with PM2.5 is steam-water separation chamber; Described steam-water separation chamber comprises steam-water separation chamber's entrance, steam-water separator, steam-water separation chamber's flooding nozzle, steam-water separation chamber's flushing pipe.

The utility model modular desulphurization and dust removal integrated device, in cyclic process to water pump, pipeline, equipment all corrosion-free and clogging, there is equipment of being convenient to run and the good effect maintained, equipment is simple to operation, desulphurization cost is low, desulfuration efficiency is up to 99%, and the desulfation dust-extraction device that the removal effect of PM2.5 is more common is simultaneously better.

Accompanying drawing explanation

Fig. 1 is the utility model modular desulphurization and dust removal integrated device elevational schematic view;

Fig. 2 is the utility model modular desulphurization and dust removal integrated device generalized section.

Detailed description of the invention

As shown in Figure 1, the utility model modular desulphurization and dust removal integrated device, tower body framework is formed by column 16, this device comprises rectangle tower body 18, tower body 18 top is provided with exhanst gas outlet 1, tower body 18 bottom is provided with smoke inlet 14, and what be connected with smoke inlet 14 is circular all air chambers 13, and the top of circular all air chambers 13 is the flue of each setting. be provided with SO in each flue erect ₂absorption reaction generation chamber 9, PM2.5 adsorb reunion generation chamber 7, steam-water separation chamber 4.Pending flue gas is tangentially entered in circular all air chambers 13 by this bottom of device gas approach 14, and the flue gas of rotation is assigned to each and erects in flue, forms at setting flue gas in flue the turbulent airflow rotating and rise.Erect in flue and be provided with SO ₂absorption reaction generation chamber 9, at SO ₂the bottom of absorption reaction generation chamber 9 is provided with rotational flow generator 12, has Ca (OH) on the top of rotational flow generator 12 ₂emulsion circulation continuous inputs, the flue gas of rotational flow generator 12 by rising and the Ca (OH) of decline ₂emulsion Forced Mixing, form the gas-liquid emulsion layer that one deck is stable, the formation of gas-liquid emulsion layer substantially increases gas-liquid mixed speed, reduces liquid consumption in wet desulphurization at double, and liquid-gas ratio is low, and (namely liquid-gas ratio absorbs 1m ³the liquid volume needed for flue gas), saved cost, pipeline corrosion resistance improve, desulfuration efficiency is high.In gas-liquid emulsion process, emulsification liquid layer progressive additive, the towing force of uprising gas and the gravity of emulsion reach the gas-liquid emulsion layer thickness that can maintain effective desulfurization, along with desulfurizing agent Ca (OH) ₂the continuing of emulsion fills into, and emulsification liquid layer constantly thickens, and the emulsion originally formed is constantly by the emulsion successively pressure drop newly formed.Exceed the Ca (OH) of flue gas holder power ₂emulsion, together with the calcium sulfite generated after reacting and dust, exports 15 by absorbent slurry and falls in the circulatory pool of this bottom of device.As long as there is rational flue gas flow to flow through, the emulsion layer thickness that can keep relative stability.Due in emulsion, the methods such as fluid level gauge area ratio water film dedusting, spraying and dedusting large several times to tens times, therefore, the efficiency absorbing dust also increase at double.SO ₂absorption reaction generation chamber 9 can observe the situation of gas-liquid emulsion layer by the generation chamber visor 11 of bottom, and the air force of rotational flow generator 12 is regulated by air-quantity adjusting valve 10.

As shown in Figure 2, SO ₂the top of absorption reaction generation chamber 9 is provided with PM2.5 and adsorbs reunion generation chamber 7, flue gas after desulfurization enters PM2.5 and adsorbs in reunion generation chamber 7, PM2.5 absorption reunion generation chamber 7 is the particulate PM2.5 by making to the flue gas injection foam reunion adsorbent after desulfurization in flue gas, PM8, PM10 etc. are agglomerated into large particle, are easier to be separated after entering steam-water separation chamber 4.Agglomerator sprays the mouth of pipe 8 by PM2.5 reunion and accesses in PM2.5 absorption reunion generation chamber 7.Steam-water separation chamber 4 is positioned at the top that PM2.5 adsorbs reunion generation chamber 7, comprise steam-water separator 5, steam-water separation chamber's flushing pipe 6, steam-water separation chamber's entrance 3, flue gas enters in steam-water separation chamber 4 by steam-water separation chamber's entrance 3, be agglomerated into large particle in flue gas to be separated easily, carbonated drink separation adopts coalescence and principle of inertia, and structure is simple.The flue gas be finally disposed is opened top cover 2 and is entered air through this device exhanst gas outlet 1.Wherein steam-water separation chamber 4 also serves the effect of two-stage dust removal simultaneously.

Claims (2)

1. a modular desulphurization and dust removal integrated device, comprise tower body (18), tower body (18) top is provided with exhanst gas outlet (1), tower body (18) bottom is provided with smoke inlet (14), it is characterized in that, what be connected with smoke inlet (14) is circular all air chambers (13), and circular all air chamber (13) top is flue, is provided with SO successively in flue ₂absorption reaction generation chamber (9), PM2.5 adsorb reunion generation chamber (7), steam-water separation chamber (4), described SO ₂rotational flow generator (12) is provided with, SO in absorption reaction generation chamber (9) ₂absorption reaction generation chamber bottom is provided with the air-quantity adjusting valve (10) regulating rotational flow generator air quantity; SO ₂the top of absorption reaction generation chamber is provided with PM2.5 and adsorbs reunion generation chamber, and what adsorb that reunion generation chamber is closely connected with PM2.5 is steam-water separation chamber; Described steam-water separation chamber comprises steam-water separation chamber's entrance, steam-water separator, steam-water separation chamber's flooding nozzle, steam-water separation chamber's flushing pipe.

2. modular desulphurization and dust removal integrated device according to claim 1, is further characterized in that, described SO ₂sO is arranged at absorption reaction generation chamber (9) bottom ₂absorption reaction generation chamber visor (11).